I have the sequence (cDNA) of the "x" expressed gene. I would like to discover putative regulatory regions (ex: the promoter region) upstream to the expressed sequence but I have not the DNA sequence upstream to the expressed ones. I have two questions: how can I get the DNA sequence that may contain predicted regulatory elements and how can I predict computationally (through for example an alignment) the presence of putative regulatory motifs or generally speaking regulatory sequences? I'm new in this field.
Thank you very much